Patents
Patents for G04G 19 - Electric power supply circuits specially adapted for use in electronic time-pieces (1,255)
04/2000
04/06/2000WO2000019280A1 System and method for reducing power consumption in waiting mode
04/05/2000EP0990961A1 Electromagnetic transducer and electronic device including the transducer
04/04/2000US6046648 Crystal oscillator circuit having low power consumption
03/2000
03/30/2000WO2000017716A1 Electronic timepiece, and method of power supply and time adjustment thereof
03/09/2000WO2000013066A1 Electronic watch with generating function
03/01/2000EP0982638A1 Electronic control timepiece
02/2000
02/23/2000CN1049747C AC driving device
02/02/2000EP0976420A1 Movement powered timepiece having a full-wave rectifier with dynamic bias
01/2000
01/26/2000EP0974377A1 Full-wave rectifier with dynamic bias
01/19/2000EP0972335A2 Thermal power converter for supplying electricity to an autonomous apparatus with low consumption from a very slight difference in temperature
01/12/2000CN1241270A Small-sized electronic equipment
01/12/2000CN1241265A Nonemissive displays and piezoelectric power supplies therefor
12/1999
12/08/1999EP0962840A1 Small-sized electronic equipment
11/1999
11/09/1999US5982157 Chopper-amplifier for the voltage of a photovoltaic power source, in particular for a timepiece
11/02/1999US5978318 Timepiece device mechanism for indicating restart after recharging
10/1999
10/27/1999EP0952500A1 Electronic device and method for controlling electronic device
10/26/1999US5974002 Electronic watch using a thermoelement
09/1999
09/29/1999EP0945769A1 Watch provided with thermoelectric generation unit
09/08/1999CN2337593Y 时钟 Clock
09/02/1999WO1999044103A1 Power generation device and electronic timepiece using the device
08/1999
08/26/1999WO1999042910A1 Portable wrist device
08/25/1999EP0937278A2 Nonemissive displays and piezoelectric power supplies therefor
08/19/1999WO1999041638A1 Electrooptical cell or photovoltaic cell, and method for making same
08/17/1999US5940348 Electronic timepiece
08/11/1999EP0935334A2 Electronic device fitted with power generators
08/11/1999EP0935178A2 Radio-controlled watch
08/10/1999CA2044002C Housing for an energy cell in a wristwatch
07/1999
07/28/1999CN1224516A Electronic circuit, semiconductor device, electronic equipment, and clock
07/27/1999US5930026 Nonemissive displays and piezoelectric power supplies therefor
07/27/1999US5929715 Oscillation circuit having electrostatic protective circuit
07/08/1999WO1999034452A1 Thermoelectric generation unit and portable electronic device using the unit
06/1999
06/23/1999CN1220783A Oscillation circuit, electronic circuit, semiconductor device, electronic equipment and clock
06/03/1999WO1999027423A1 Electronic device and method for controlling electronic device
06/02/1999EP0919959A1 Portable object, in particular a watch, containing multiple selectable electronic modules
06/02/1999EP0919887A2 Electronic timepiece having thermoelectric element
05/1999
05/12/1999EP0915409A1 Electronic circuit, semiconductor device, electronic equipment, and clock
05/05/1999CN1216127A Electronic clock
04/1999
04/28/1999EP0848842B1 Timepiece movement
04/22/1999WO1999019775A1 Watch provided with thermoelectric generation unit
04/21/1999EP0909996A2 Clock/radio powered by solar energy
04/14/1999EP0908799A2 Electronic clock having an electric power generating element
04/08/1999WO1999017174A1 Small-sized electronic equipment
03/1999
03/31/1999EP0905877A1 Oscillation circuit, electronic circuit, semiconductor device, electronic equipment and clock
03/30/1999US5889735 Thermoelectrically powered wrist watch
03/24/1999EP0903649A1 Electronic clock
03/23/1999US5886953 Heavy-load drive apparatus for an electronic watch
03/17/1999CN1210998A Dial formed of solar cell, in particular for timepiece
03/09/1999US5881027 Timepiece movement
02/1999
02/24/1999EP0898355A2 Electronic apparatus
02/17/1999CN1208511A Power supply device and portable electronic equipment
02/17/1999CN1208284A Power-generation detection circuit, semiconductor device, electronic device, clock, power-generation detection method, and power consumption control method
02/16/1999US5872744 Battery arrangement for a wrist-carried radiotelephone
01/1999
01/19/1999US5862046 For a timepiece
01/13/1999EP0891038A1 Power supply device and portable electronic equipment
12/1998
12/23/1998EP0886197A1 Power-generation detection circuit, semiconductor device, electronic device, timepiece, power-generation detection method, and power consumption control method
11/1998
11/11/1998CN1040700C Timepiece including a power cell compartment closed by a gasket seal
11/10/1998US5835457 Electronic watch and method of charging the same
11/05/1998WO1998025333A3 Power converter with reduced energy consumption from a very low voltage source
11/04/1998CN1198223A Electronic timepiece
11/04/1998CN1197944A Electrical apparatus supplied by photo-voltaic power source, in particular timepiece
10/1998
10/28/1998CN1197326A Oscillatory circuit, electronic circuit, semiconductor device, electronic instrument and clock
10/21/1998EP0872783A1 Dial constituted by a solar cell, in particular for a timepiece
10/21/1998CN1196596A Power generating device, method and clocking device
10/21/1998CN1196510A Dial formed of solar cell in particular for timepiece
10/14/1998CN1195795A Chopper-amplifier for voltage of photovoltaic power source, in particular for timepiece
10/07/1998CN1195408A Timepiece movement
09/1998
09/30/1998EP0867787A1 Electronic watch with built-in solar cell
09/11/1998WO1998039693A1 Electronic circuit, semiconductor device, electronic equipment, and clock
09/02/1998EP0862262A2 Power generating device, charging method and timepiece
09/02/1998EP0862099A1 Rechargeable electronic device
09/01/1998US5801668 Small hand-held electronic apparatus with field effect light emitting device
08/1998
08/26/1998EP0860757A1 Electronic timepiece
08/25/1998US5798985 Electronic watch and method of driving the same
08/19/1998EP0859454A1 Switch mode booster of a photovoltaic source voltage, especially for a timepiece
08/13/1998WO1998035272A1 Electronic clock
08/04/1998US5790478 Time-keeping instrument, in particular an analog-type electric wrist watch
07/1998
07/29/1998EP0855633A1 Electronic timepiece
07/29/1998CN1189010A Oslillation circuit, electronic circuit, semiconductor device installing the same, timepiece and electronic device
07/28/1998US5787054 Portable electronic device
07/23/1998WO1998032218A1 Oscillation circuit, electronic circuit, semiconductor device, electronic equipment and clock
07/16/1998DE19700108A1 Electronic clock power supply
07/15/1998EP0853265A1 Electronic apparatus functioning with the aid of a photovoltaic cell, in particular timepiece
07/09/1998WO1998019208A3 Nonemissive displays and piezoelectric power supplies therefor
07/01/1998EP0851323A1 Oscillation circuit, electronic circuit using the same, and semiconductor device, electronic equipment, and timepiece using the same
07/01/1998EP0851322A1 Micro-generator, module and time piece, containing such a micro-generator
06/1998
06/30/1998US5774352 Power circuit for driving a capacitive load
06/24/1998EP0848842A1 Timepiece movement
06/11/1998WO1998025333A2 Power converter with reduced energy consumption from a very low voltage source
06/11/1998CA2274008A1 Power converter for supplying electricity to an autonomous apparatus with low consumption from a very low voltage source
06/10/1998EP0846989A1 Oscillation circuit and electronic circuit, and semiconductor device, timepiece, and electronic device equipped with the same
05/1998
05/27/1998EP0844540A1 Timepiece device
05/27/1998EP0843576A2 Movement powered medical pulse generator having a full-wave rectifier with dynamic bias
05/22/1998WO1998021815A1 Power supply device and portable electronic equipment
05/07/1998WO1998019208A2 Nonemissive displays and piezoelectric power supplies therefor
04/1998
04/22/1998EP0837377A1 Thermoelectrically powered wrist watch
04/14/1998US5740132 Electronic timepiece and method of charging the same
03/1998
03/19/1998WO1998011473A1 Electronic watch with built-in solar cell
03/18/1998EP0829781A1 Thermoelectrically operated timepiece
03/05/1998WO1998009202A1 Electronic timepiece
02/1998
02/26/1998WO1998008146A1 Rechargeable electronic device
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